The passage of smolts and kelts through fish passes.
Great Britain.Scottish Home Department.
North of Scotland Hydro-electric Board.
At head of title: Scottish Home Department.
Cover title.
"J. Gray (Chairman), Scottish Home Department and North of Scotland Hydro-Electric Board Salmon Research Committee"--Page 2.
"Inquiry report of the Pass Investigation Sub-Committee"--Page 3.
"S.O. Code No. 49-421."
Fishways
Salmon fisheries